diff options
| author |   guenther <guenther@openbsd.org> | 2010-06-29 16:39:22 +0000 |
|---|---|---|
| committer | guenther <guenther@openbsd.org> | 2010-06-29 16:39:22 +0000 |
| commit | d8035eb33180d1cf5de0fa91afe9ef554e5020dd (patch) | |
| tree | 015ebd2319253a5c10dbc3dc7a805e4bdd081076 /lib/libkvm/kvm_proc2.c | |
| parent | Add the new schema parser. (diff) | |
| download | wireguard-openbsd-d8035eb33180d1cf5de0fa91afe9ef554e5020dd.tar.xz wireguard-openbsd-d8035eb33180d1cf5de0fa91afe9ef554e5020dd.zip | |
Fail instead of lying if a process asks sysctl()'s KERN_PROC2 or
KERN_FILE2 (or their libkvm wrappers) for more information than the
running implementation knows how to provide.
ok millert@ deraadt@
Diffstat (limited to 'lib/libkvm/kvm_proc2.c')
| -rw-r--r-- | lib/libkvm/kvm_proc2.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/libkvm/kvm_proc2.c b/lib/libkvm/kvm_proc2.c index 7e3fb8b863b..00e7f774dec 100644 --- a/lib/libkvm/kvm_proc2.c +++ b/lib/libkvm/kvm_proc2.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kvm_proc2.c,v 1.1 2010/01/10 03:37:50 guenther Exp $ */ +/* $OpenBSD: kvm_proc2.c,v 1.2 2010/06/29 16:39:23 guenther Exp $ */ /* $NetBSD: kvm_proc.c,v 1.30 1999/03/24 05:50:50 mrg Exp $ */ /*- * Copyright (c) 1998 The NetBSD Foundation, Inc. @@ -330,6 +330,12 @@ kvm_getproc2(kvm_t *kd, int op, int arg, size_t esize, int *cnt) struct proc *p; char *bp; + if (esize > sizeof(struct kinfo_proc2)) { + _kvm_syserr(kd, kd->program, + "kvm_getproc2: unknown fields requested: libkvm out of date?"); + return (NULL); + } + memset(nl, 0, sizeof(nl)); nl[0].n_name = "_nprocs"; nl[1].n_name = "_allproc"; |